Just discovered we have a sewer clean out line in the interior of our house. Can we pipe up from this clean out line, with a tee of some sort for access down the road, such that we could run a pipe outside to connect to the waste line of our multiport valve? We are redoing ALL of our pool plumbing, so now would be an ideal time to do it.
This seems like a genius idea, in that the chlorine (if any) in the waste water would help kill tree roots that clog our main sewer line. On the contrary, a break in the plumbing from waste could lead to a ton of pool waste water in the basement. That could be really, really bad.
Otherwise, we'd just be sending the water out into the street and into the gutters, which may or may not be legal to do. Do the pros outweigh the cons?
EDIT: Picture of the area, with the clean out access in from of where the water line comes in: